Detects human WISP‑1/CCN4 in direct ELISAs. In direct ELISAs, approximately 50% cross-reactivity with recombinant mouse WISP-1 is observed and less than 1% cross-reactivity with recombiant human (rh) CTGF and rhNOV is observed.

Clonality

Polyclonal

Host

Goat

Isotype

IgG

Scientific Data Images for Human WISP-1/CCN4 Antibody

WISP-1/CCN4 in Human Breast Cancer Tissue.

WISP-1/CCN4 was detected in immersion fixed paraffin-embedded sections of human breast cancer tissue using 15 µg/mL Goat Anti-Human WISP-1/CCN4 Antigen Affinity-purified Polyclonal Antibody (Catalog # AF1627) overnight at 4 °C. Tissue was stained with the Anti-Goat HRP-DAB Cell & Tissue Staining Kit (brown; Catalog # CTS008) and counterstained with hematoxylin (blue). View our protocol for Chromogenic IHC Staining of Paraffin-embedded Tissue Sections.

Human WISP-1 / CCN4 ELISA Standard Curve

Recombinant Human WISP-1/CCN4 (Catalog # 1627-WS) was serially diluted and captured by Mouse Anti-Human WISP-1/CCN4 Monoclonal Antibody (Catalog # MAB16271) coated on a Clear Polystyrene Microplate (Catalog # DY990). Goat Anti-Human WISP-1/CCN4 Antigen Affinity-purified Polyclonal Antibody (Catalog # AF1627) was biotinylated and incubated with the protein captured on the plate. Detection of the standard curve was achieved by incubating Streptavidin-HRP (Catalog # DY998)

Applications for Human WISP-1/CCN4 Antibody

Application

Recommended Usage

Immunohistochemistry

5-15 µg/mL
Sample: Immersion fixed paraffin-embedded sections of human breast cancer tissue

Western Blot

0.1 µg/mL
Sample: Recombinant Human WISP-1/CCN4 (Catalog # 1627-WS)

Formulation, Preparation, and Storage

Purification

Antigen Affinity-purified

Reconstitution

Reconstitute at 0.2 mg/mL in sterile PBS. For liquid material, refer to CoA for concentration.

Formulation

Lyophilized from a 0.2 μm filtered solution in PBS with Trehalose. See Certificate of Analysis for details.
*Small pack size (-SP) is supplied either lyophilized or as a 0.2 µm filtered solution in PBS.

Shipping

Lyophilized product is shipped at ambient temperature. Liquid small pack size (-SP) is shipped with polar packs. Upon receipt, store immediately at the temperature recommended below.

Stability & Storage

Use a manual defrost freezer and avoid repeated freeze-thaw cycles.

12 months from date of receipt, -20 to -70 °C as supplied.
1 month, 2 to 8 °C under sterile conditions after reconstitution.
6 months, -20 to -70 °C under sterile conditions after reconstitution.

Background: WISP-1/CCN4

Human WISP-1 (Wnt-induced secreted protein-1; also CNN4) is a 40 kDa, secreted, heparin-binding glycoprotein that is a member of the CCN (or CTGF/Cyr61/Nov) cysteine-rich protein family (1‑5). It is synthesized as a 367 aa precursor that contains a series of structural homology modules. Following a 22 amino acid (aa) signal sequence, there is a 68 aa IGFBP-like domain (aa 53‑120), a 57 aa von Willebrand factor type C (VWC) module (aa 126‑182), a 40 aa TSP type I domain (aa 220‑259) and a 75 aa, C-terminal cysteine knot motif (aa 273‑347). The VWC module is associated with protein-protein interaction, the TSP domain binds sulfated glycoconjugates, and the cysteine knot mediates dimerization and receptor binding (4). It is likely that WISP-1 normally circulates as an 80 kDa homodimer (2). At least five alternative splice forms are known for WISP-1. One is 30 kDa in size, 258 aa in length, and shows a substitution of a His for aa 95‑182. This removes the VWC domain (2, 6). A second isoform is 155 aa in length and shows a frameshift at Arg 117 with a unique 38 aa C‑terminal extension. A third is 195 aa in length and shows a 31 aa substitution for the first 203 aa of the full length precursor (6). This retains the VWC and cysteine knot domains. A fourth shows a 43 aa substitution for aa 117‑367 for a total length of 163 aa. This effectively removes everything but the IGFBP-like domain (7). The last splice form contains a deletion of aa 25‑269 for a total length of 122 aa. Thus, only the signal sequence and cysteine knot motifs are retained (8). This leaves only the IGFBP-like domain (9). Full-length mature human WISP-1 is 85% aa identical to both mouse and rat WISP-1. WISP-1 is expressed by osteoblasts and may contribute to fracture healing by promoting bone cell formation (10, 11).

References

Pennica, D. et al. (1998) Proc. Natl. Acad. Sci. USA 95:14717.
Tanada, S. et al. (2001) Oncogene 20:5525.
Brigstock, D.R. et al. (2003) J. Clin. Pathol. Mol. Pathol. 56:127.
Desnoyers, L. (2004) Curr. Pharm. Des. 10:3913.
Brigstock, D.R. (2003) J. Endocrinol. 178:169.
Li, Z. (2005) GenBank Accession # AAP43925.
Li, Z. (2005) GenBank Accession # AAP43926.
Li, Z. (2005) GenBank Accession # AAP43924.
Cervello, M. et al. (2004) Ann. N.Y. Acad. Sci. 1028:432.
French, D.M. et al. (2004), Am. J. Pathol. 165:855.
Parisi, M.S. et al. (2006) Bone 38:671.

Long Name

Wnt-1 Induced Secreted Protein 1

Alternate Names

CCN4, WISP1

Entrez Gene IDs

8840 (Human); 22402 (Mouse); 102125044 (Cynomolgus Monkey)

Gene Symbol

CCN4

UniProt

O95388

Additional WISP-1/CCN4 Products

Product Documents for Human WISP-1/CCN4 Antibody

Product Datasheets

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COA

SDS

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Product Specific Notices for Human WISP-1/CCN4 Antibody

For research use only

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